3 [[http://www.gnu.org/software/guix/][GNU Guix]] (IPA: /ɡiːks/) is a purely functional package manager, and
4 associated free software distribution, for the [[http://www.gnu.org/gnu/gnu.html][GNU system]]. In addition
5 to standard package management features, Guix supports transactional
6 upgrades and roll-backs, unprivileged package management, per-user
7 profiles, and garbage collection.
9 It provides [[http://www.gnu.org/software/guile/][Guile]] Scheme APIs, including a high-level embedded
10 domain-specific languages (EDSLs) to describe how packages are to be
13 A user-land free software distribution for GNU/Linux comes as part of
16 Guix is based on the [[http://nixos.org/nix/][Nix]] package manager.
21 GNU Guix currently depends on the following packages:
23 - [[http://gnu.org/software/guile/][GNU Guile 2.0.x]], version 2.0.5 or later
24 - [[http://gnupg.org/][GNU libgcrypt]]
25 - optionally [[http://savannah.nongnu.org/projects/guile-json/][Guile-JSON]], for the 'guix import pypi' command
27 Unless `--disable-daemon' was passed, the following packages are needed:
29 - [[http://sqlite.org/][SQLite 3]]
30 - [[http://www.bzip.org][libbz2]]
31 - [[http://gcc.gnu.org][GCC's g++]]
33 When `--disable-daemon' was passed, you instead need the following:
35 - [[http://nixos.org/nix/][Nix]]
39 See the manual for the installation instructions, either by running
41 info -f doc/guix.info "(guix) Installation"
43 or by checking the [[http://www.gnu.org/software/guix/manual/guix.html#Installation][web copy of the manual]].
45 For information on installation from a Git checkout, please see the ‘HACKING’
48 * Installing Guix from Guix
50 You can re-build and re-install Guix using a system that already runs Guix.
53 - Install the dependencies (see 'Requirements' above) and build tools using
56 guix package --install autoconf automake bzip2 gcc-toolchain gettext \
57 guile libgcrypt pkg-config sqlite
59 - Set the environment variables that Guix recommends you to set during the
60 package installation process:
61 ACLOCAL_PATH, CPATH, LIBRARY_PATH, PKG_CONFIG_PATH
63 - Set the PATH environment variable to refer to the profile:
64 PATH=$HOME/.guix-profile/bin:$PATH
66 - Re-run the 'configure' script passing it the option
67 '--with-libgcrypt-prefix=$HOME/.guix-profile/', as well as
68 '--localstatedir=/somewhere', where '/somewhere' is the 'localstatedir'
69 value of the currently installed Guix (failing to do that would lead the
70 new Guix to consider the store to be empty!).
72 - Run "make", "make check", and "make install".
76 Guix does the high-level preparation of a /derivation/. A derivation is
77 the promise of a build; it is stored as a text file under
78 =/gnu/store/xxx.drv=. The (guix derivations) module provides the
79 `derivation' primitive, as well as higher-level wrappers such as
80 `build-expression->derivation'.
82 Guix does remote procedure calls (RPCs) to the Guix or Nix daemon (the
83 =guix-daemon= or =nix-daemon= command), which in turn performs builds
84 and accesses to the Nix store on its behalf. The RPCs are implemented
85 in the (guix store) module.
87 * Installing Guix as non-root
89 The Guix daemon allows software builds to be performed under alternate
90 user accounts, which are normally created specifically for this
91 purpose. For instance, you may have a pool of accounts in the
92 =guixbuild= group, and then you can instruct =guix-daemon= to use them
95 $ guix-daemon --build-users-group=guixbuild
97 However, unless it is run as root, =guix-daemon= cannot switch users.
98 In that case, it falls back to using a setuid-root helper program call
99 =nix-setuid-helper=. That program is not setuid-root by default when
100 you install it; instead you should run a command along these lines
101 (assuming Guix is installed under /usr/local):
103 # chown root.root /usr/local/libexec/nix-setuid-helper
104 # chmod 4755 /usr/local/libexec/nix-setuid-helper
108 GNU Guix is hosted at https://savannah.gnu.org/projects/guix/.
110 Please email <bug-guix@gnu.org> for bug reports or questions regarding
111 Guix and its distribution; email <gnu-system-discuss@gnu.org> for
112 general issues regarding the GNU system.
114 Join #guix on irc.freenode.net.
118 GNU Guix is based on [[http://nixos.org/nix/][the Nix package manager]]. It implements the same
119 package deployment paradigm, and in fact it reuses some of its code.
120 Yet, different engineering decisions were made for Guix, as described
123 Nix is really two things: a package build tool, implemented by a library
124 and daemon, and a special-purpose programming language. GNU Guix relies
125 on the former, but uses Scheme as a replacement for the latter.
127 Using Scheme instead of a specific language allows us to get all the
128 features and tooling that come with Guile (compiler, debugger, REPL,
129 Unicode, libraries, etc.) And it means that we have a general-purpose
130 language, on top of which we can have embedded domain-specific languages
131 (EDSLs), such as the one used to define packages. This broadens what
132 can be done in package recipes themselves, and what can be done around them.
134 Technically, Guix makes remote procedure calls to the ‘nix-worker’
135 daemon to perform operations on the store. At the lowest level, Nix
136 “derivations” represent promises of a build, stored in ‘.drv’ files in
137 the store. Guix produces such derivations, which are then interpreted
138 by the daemon to perform the build. Thus, Guix derivations can use
139 derivations produced by Nix (and vice versa).
141 With Nix and the [[http://nixos.org/nixpkgs][Nixpkgs]] distribution, package composition happens at
142 the Nix language level, but builders are usually written in Bash.
143 Conversely, Guix encourages the use of Scheme for both package
144 composition and builders. Likewise, the core functionality of Nix is
145 written in C++ and Perl; Guix relies on some of the original C++ code,
146 but exposes all the API as Scheme.
150 - [[http://nixos.org][Nix, Nixpkgs, and NixOS]], functional package manager and associated
151 software distribution, are the inspiration of Guix
152 - [[http://www.gnu.org/software/stow/][GNU Stow]] builds around the idea of one directory per prefix, and a
153 symlink tree to create user environments
154 - [[http://www.pvv.ntnu.no/~arnej/store/storedoc_6.html][STORE]] shares the same idea
155 - [[https://live.gnome.org/OSTree/][GNOME's OSTree]] allows bootable system images to be built from a
156 specified set of packages
157 - The [[http://www.gnu.org/s/gsrc/][GNU Source Release Collection]] (GSRC) is a user-land software
158 distribution; unlike Guix, it relies on core tools available on the